The Perrin Equal Length Header for the 2015+ Subaru WRX is a high efficiency exhaust manifold to maximize power, torque, and response. You can expect roughly 20 ft-lb and 20 hp increase over stock, and the design allows the header to be used with aftermarket/bigger turbos for high power builds.

If power is your game then this is the perfect header for your WRX! Applications:

Subaru WRX [VAG] (2015, 2016, 2017)

Type: Exhaust Manifold

Design: 4-2 Equal Length

Material: SUS304

Weight: 12 [lbs]

Piping Size: N/A

Power: +20 HP

Torque: +20 FT-LB

Tune: Recommended not required

Chassis: VAG / VA

Engine: FA20

Notes: Not Carb Legal

Warranty: 5 Year Limited

Features

100% bolt on product

4-2 Equal length header

20 HP & 20 TQ with no tune (test vehicle has turbo-back before and after)